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High temperature (150 DEG C) resistant tightly packaged fiber and preparation process thereof

A tight-packed optical fiber, high temperature resistance technology, applied in the direction of cladding optical fiber, multi-layer core/cladding optical fiber, fiber mechanical structure, etc., to achieve the effect of improving mechanical properties and tensile strength

Inactive Publication Date: 2012-06-27
NANJING QUANXIN CABLE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the application of optical fiber in the military field is still in the initial stage of development

Method used

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  • High temperature (150 DEG C) resistant tightly packaged fiber and preparation process thereof
  • High temperature (150 DEG C) resistant tightly packaged fiber and preparation process thereof
  • High temperature (150 DEG C) resistant tightly packaged fiber and preparation process thereof

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Embodiment Construction

[0011] Control attached figure 1 , which is characterized in that the periphery of the fiber core 1 is a coating layer 2 coated with UV-curable acrylate; the periphery of the coating layer 2 is a tight outer layer 4 of ethylene tetrafluoroethylene copolymer ETFE;

[0012] Its preparation process, optical fiber core is divided into single-mode and multi-mode, typical specifications are: single-mode structure 9 / 125μm, multi-mode structure 50 / 125μm or 62.5 / 125μm; coating layer is coated with UV-curable acrylate, coating The outer diameter of the layer is 250 μm; the tight outer layer 4 is a high-temperature ethylene tetrafluoroethylene copolymer ETFE extruded by a single-layer thin-walled high-temperature extruder. Coating layer 2 coated with special UV-curable acrylate has a temperature resistance rating of -65°C to +150°C; a tight outer layer of high-temperature ethylene tetrafluoroethylene copolymer ETFE extruded by a high-temperature extruder single-layer thin-wall 4 high te...

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Abstract

The invention discloses a high temperature (150 DEG C) resistant tightly packaged fiber and a preparation process thereof. The fiber is characterized in that: the periphery of a fiber core is provided with a coating layer which is coated by ultraviolet curing acrylate; and the periphery of the coating layer is provided with a tightly packaged outer layer made of an ethylene-tetrafluoroethylene (ETFE) copolymer. According to the preparation process, the fiber core of the fiber is divided into a single mode fiber core and a multimode fiber core, a single mode structure has 9 / 125 mu m and a multimode structure has 50 / 125 mu m or 62.5 / 125 mu m; the coating layer is coated with the ultraviolet curing acrylate, and has the outer diameter of 250 mu m; and the tightly packaged layer is prepared by extruding the high-temperature ETFE copolymer through a single-layer or double-layer thin wall of a high-temperature extruding machine. The invention has the advantages that: the fiber resists high and low temperature ranging from 65 DEG C below zero to 150 DEG C, and a tightly packaged inner layer and the tightly packaged outer layer resist high temperature of 150 DEG C; and the fiber has the characteristics of high strength, bending resistance, impact resistance, ageing resistance, long service life, corrosion resistance, flame retardancy and the like, can provide high-reliability service in a severe environment, and is suitable for high-speed signal transmission under aerospace, electronic and onboard special environmental conditions.

Description

technical field [0001] The invention relates to a high temperature resistant 150°C tight-packed optical fiber and its preparation process. The product has high and low temperature resistance -65°C to +150°C, high strength, bending resistance, impact resistance, aging resistance, long life, corrosion resistance, and flame retardancy. It can provide high-reliability services in harsh environments, and is suitable for high-speed signal transmission in aerospace, electronics, and airborne special environmental conditions. Background technique [0002] At present, in the field of common civilian optical fibers, there are already many domestic manufacturers, and the technical level is also very mature. However, the application of optical fiber in the military field is still in the initial stage of development. The main reason is that military optical fibers have high requirements, not only good environmental and mechanical properties, but also special requirements such as high an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/036G02B6/44C03C25/28
Inventor 李峰樊群肖缪霞许宪成郑木广陈祥楼王崇国赖洪林
Owner NANJING QUANXIN CABLE TECH
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